19 lines
580 B
C++
19 lines
580 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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ios::sync_with_stdio(false); //读入输出优化的强迫症
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int c, q = 1;
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//在windows平台，stdin输入流的EOF标志是 ctrl + z,然后回车就结束了！在黑窗口下试试，
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// Clion中需要进入调试模式，然后ctrl+d 即可退出
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//参考：https://www.zhihu.com/question/41952758
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while ((c = getchar()) != EOF) {
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if (c == '"') {
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printf("%s", q ? "``" : "''");
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q = !q;
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} else printf("%c", c);
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}
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return 0;
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}
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